XML 26 R31.htm IDEA: XBRL DOCUMENT v3.19.3
Significant Accounting Policies - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Disaggregation of Revenue [Line Items]        
Revenue $ 1,011,658,000 $ 1,202,081,000 $ 3,089,698,000 $ 3,432,793,000
BCO Independent Contractor        
Disaggregation of Revenue [Line Items]        
Consolidated revenue, percentage 46.00% 43.00% 45.00% 44.00%
Truck Brokerage Carriers        
Disaggregation of Revenue [Line Items]        
Consolidated revenue, percentage 46.00% 50.00% 47.00% 49.00%
Railroads        
Disaggregation of Revenue [Line Items]        
Consolidated revenue, percentage 3.00% 3.00% 3.00% 3.00%
Air and Ocean Cargo Carriers        
Disaggregation of Revenue [Line Items]        
Consolidated revenue, percentage 3.00% 3.00% 3.00% 2.00%
BCO Independent Contractor and Truck Brokerage Carriers | Van Equipment        
Disaggregation of Revenue [Line Items]        
Revenue $ 575,042,000 $ 717,047,000 $ 1,799,421,000 $ 2,086,523,000
BCO Independent Contractor and Truck Brokerage Carriers | Unsided/Platform Equipment        
Disaggregation of Revenue [Line Items]        
Revenue 331,787,000 375,739,000 980,615,000 1,039,784,000
BCO Independent Contractor and Truck Brokerage Carriers | Less than Truckload        
Disaggregation of Revenue [Line Items]        
Revenue $ 25,367,000 $ 25,500,000 $ 73,475,000 $ 76,448,000